What is lepton flavour universality?

Electrons, muons and τ leptons represent three varieties (or flavors) of charged leptons. The Standard Model assumes that the couplings of particles that mediate the weak force — known as ‘W’ or ‘Z’ electroweak gauge bosons — to leptons occurs irrespective of their flavor. This is known as lepton flavor universality.

What does the LHCb do?

The Large Hadron Collider beauty (LHCb) experiment specializes in investigating the slight differences between matter and antimatter by studying a type of particle called the “beauty quark”, or “b quark”.

What is the Flavour force?

flavour, also spelled flavor, in particle physics, property that distinguishes different members in the two groups of basic building blocks of matter, the quarks and the leptons.

How many detectors are in the LHC?

Eight detectors have been constructed at the LHC, located underground in large caverns excavated at the LHC’s intersection points. Two of them, the ATLAS experiment and the Compact Muon Solenoid (CMS), are large general-purpose particle detectors.

Do leptons have strangeness?

All hadrons which contain an anti-strange quark ( )are assigned a strangeness number S=+1. Leptons, and hadrons which don’t contain a strange quark have strangeness S=0.

What are the three main categories of particles in the standard model?

The Standard Model includes the matter particles (quarks and leptons), the force carrying particles (bosons), and the Higgs boson.

What is LHCb experiment at CERN?

The LHCb experiment is one of the four large experiments at the Large Hadron Collider at CERN, situated underground on the Franco-Swiss border near Geneva. The experiment is designed to study decays of particles containing a beauty quark, a fundamental particle that has roughly four times the mass of the proton.

What does LHCb stand for?

Large Hadron Collider beauty experiment
LHCb – Large Hadron Collider beauty experiment.

Can electromagnetic interaction change lepton Flavour?

Leptons may be assigned the six flavour quantum numbers: electron number, muon number, tau number, and corresponding numbers for the neutrinos. These are conserved in strong and electromagnetic interactions, but violated by weak interactions. Therefore, such flavour quantum numbers are not of great use.

What do leptons do?

lepton, any member of a class of subatomic particles that respond only to the electromagnetic force, weak force, and gravitational force and are not affected by the strong force. Leptons can either carry one unit of electric charge or be neutral. The charged leptons are the electrons, muons, and taus.

What is LHC experiment?

LHC experiments Eight experiments at the Large Hadron Collider (LHC) use detectors to analyse the myriad of particles produced by collisions in the accelerator. These experiments are run by collaborations of scientists from institutes all over the world. Each experiment is distinct, and characterised by its detectors.

Why was the LHC built?

Why was the LHC built underground? The LHC has been built in a tunnel originally constructed for a previous collider, LEP (Large Electron Positron collider). This was the most economical solution to building both LEP and the LHC.

What is the LHCb experiment?

LHCb is designed to study beauty and charm hadrons. In addition to precision studies of the known particles such as mysterious X (3872), a number of new hadrons have been discovered by the experiment. As of 2021, all four LHC experiments have discovered about 60 new hadrons in total, vast majority of which by LHCb.

/  46.24111°N 6.09694°E  / 46.24111; 6.09694 The LHCb ( Large Hadron Collider beauty) experiment is one of eight particle physics detector experiments collecting data at the Large Hadron Collider at CERN.

What are the different colours of the particles found in LHCb?

Particles identified as pions (orange), kaons (red), protons (magenta), electrons (blue) or muons (green) are shown in different colours. In addition to collected p-lead collisions, LHCb collected data from proton-helium interactions at the same time.

How many proton-proton collisions did the LHCb record this year?

LHCb has recorded 1.67 fb -1 of proton-proton collisions this year, 5 times more than in 2015, a year in which LHC collider was setting-up its operation at the record energy of 13 TeV. The total integrated luminosity recorded during run 2 reached now the target of 2 fb -1 compared to 3 fb -1 collected in run 1.